Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Icosahedral - I  (3D View)
Global Stoichiometry: Hetero 180-mer - A60B60C60 Pseudo Symmetry: Icosahedral - I  (3D View)
Pseudo Stoichiometry: Hetero 180-mer - A120B60 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 4420.22 kDa 
• Atom Count: 311940 
• Modelled Residue Count: 40320 
• Deposited Residue Count: 40320 
• Unique protein chains: 3

4CTG

The limits of structural plasticity in a picornavirus capsid revealed by a massively expanded equine rhinitis A virus particle

• PDB DOI: 10.2210/pdb4CTG/pdb
• Entry: 4CTG supersedes: 4D14, 4D15, 4D16, 4D2A
• EM Map EMD-2390:EMDBEMDataResource

• Classification: VIRUS
• Organism(s): Equine rhinitis A virus
• Mutation(s): No 


• Deposited: 2014-03-13 Released: 2014-05-21 
• Deposition Author(s): Bakker, S.E., Groppelli, E., Pearson, A.R., Stockley, P.G., Rowlands, D.J., Ranson, N.A.

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 17.0 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Limits of Structural Plasticity in a Picornavirus Capsid Revealed by a Massively Expanded Equine Rhinitis a Virus Particle.

Bakker, S.E., Groppelli, E., Pearson, A.R., Stockley, P.G., Rowlands, D.J., Ranson, N.A.

(2014) J Virol 88: 6093

• PubMed: 24648455 
• DOI: 10.1128/JVI.01979-13
• Primary Citation of Related Structures:  
  4CTF, 4CTG


• PubMed Abstract: 
  

The Picornaviridae family of small, nonenveloped viruses includes major pathogens of humans and animals. They have positive-sense, single-stranded RNA genomes, and the mechanism(s) by which these genomes are introduced into cells to initiate infection remains poorly understood. The structures of presumed uncoating intermediate particles of several picornaviruses show limited expansion and some increased porosity compared to the mature virions. Here, we present the cryo-electron microscopy structure of native equine rhinitis A virus (ERAV), together with the structure of a massively expanded ERAV particle, each at ∼17-Å resolution. The expanded structure has large pores on the particle 3-fold axes and has lost the RNA genome and the capsid protein VP4. The expanded structure thus illustrates both the limits of structural plasticity in such capsids and a plausible route by which genomic RNA might exit.

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Organizational Affiliation: 

Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
P1	AA [auth A0], BA [auth A1], CA [auth A2], DA [auth A3], EA [auth A4], FA [auth A5], GA [auth A6], HA [auth A7], IA [auth A8], JA [auth A9], A [auth AA], B [auth AB], C [auth AC], D [auth AD], E [auth AE], F [auth AF], G [auth AG], H [auth AH], I [auth AI], J [auth AJ], K [auth AK], L [auth AL], M [auth AM], N [auth AN], O [auth AO], P [auth AP], Q [auth AQ], R [auth AR], S [auth AS], T [auth AT], U [auth AU], V [auth AV], W [auth AW], X [auth AX], Y [auth AY], Z [auth AZ], KA [auth Aa], LA [auth Ab], MA [auth Ac], NA [auth Ad], OA [auth Ae], PA [auth Af], QA [auth Ag], RA [auth Ah], SA [auth Ai], TA [auth Aj], UA [auth Ak], VA [auth Al], WA [auth Am], XA [auth An], YA [auth Ao], PF [auth DC], QF [auth DD], RF [auth DE], SF [auth DF], TF [auth DG], UF [auth DH], VF [auth DI], WF [auth DJ], XF [auth DK]	246	Equine rhinitis A virus	Mutation(s): 0
UniProt
Find proteins for B9VV85 (Equine rhinitis A virus) Explore B9VV85  Go to UniProtKB:  B9VV85

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
P1	ZB [auth B0], AC [auth B1], BC [auth B2], CC [auth B3], DC [auth B4], EC [auth B5], FC [auth B6], GC [auth B7], HC [auth B8], IC [auth B9], ZA [auth BA], AB [auth BB], BB [auth BC], CB [auth BD], DB [auth BE], EB [auth BF], FB [auth BG], GB [auth BH], HB [auth BI], IB [auth BJ], JB [auth BK], KB [auth BL], LB [auth BM], MB [auth BN], OB [auth BO], QB [auth BP], RB [auth BQ], NB [auth BR], PB [auth BS], SB [auth BT], TB [auth BU], UB [auth BV], VB [auth BW], WB [auth BX], XB [auth BY], YB [auth BZ], JC [auth Ba], KC [auth Bb], LC [auth Bc], MC [auth Bd], NC [auth Be], OC [auth Bf], PC [auth Bg], QC [auth Bh], RC [auth Bi], SC [auth Bj], TC [auth Bk], UC [auth Bl], VC [auth Bm], WC [auth Bn], XC [auth Bo], YC [auth Bp], ZC [auth Bq], AD [auth Br], BD [auth Bs], CD [auth Bt], DD [auth Bu], ED [auth Bv], FD [auth Bw], GD [auth Bx]	200	Equine rhinitis A virus	Mutation(s): 0  Gene Names: P1
UniProt
Find proteins for Q91B42 (Equine rhinitis A virus) Explore Q91B42  Go to UniProtKB:  Q91B42

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
P1	HE [auth C0], IE [auth C1], JE [auth C2], KE [auth C3], LE [auth C4], ME [auth C5], NE [auth C6], OE [auth C7], PE [auth C8], QE [auth C9], HD [auth CA], ID [auth CB], JD [auth CC], KD [auth CD], LD [auth CE], MD [auth CF], ND [auth CG], OD [auth CH], PD [auth CI], QD [auth CJ], RD [auth CK], SD [auth CL], TD [auth CM], UD [auth CN], VD [auth CO], WD [auth CP], XD [auth CQ], YD [auth CR], ZD [auth CS], AE [auth CT], BE [auth CU], CE [auth CV], DE [auth CW], EE [auth CX], FE [auth CY], GE [auth CZ], RE [auth Cc], SE [auth Cd], TE [auth Ce], UE [auth Cf], VE [auth Cg], WE [auth Ch], XE [auth Ci], YE [auth Cj], ZE [auth Ck], AF [auth Cl], BF [auth Cm], CF [auth Cn], DF [auth Co], EF [auth Cp], FF [auth Cq], GF [auth Cr], HF [auth Cs], IF [auth Ct], JF [auth Cu], KF [auth Cv], LF [auth Cw], MF [auth Cx], NF [auth DA], OF [auth DB]	226	Equine rhinitis A virus	Mutation(s): 0  Gene Names: P1
UniProt
Find proteins for Q91B37 (Equine rhinitis A virus) Explore Q91B37  Go to UniProtKB:  Q91B37

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 17.0 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-03-13 
• Released Date: 2014-05-21 
Deposition Author(s): Bakker, S.E., Groppelli, E., Pearson, A.R., Stockley, P.G., Rowlands, D.J., Ranson, N.A.
• This entry supersedes: 4D14, 4D15, 4D16, 4D2A

Revision History  

• Version 1.0: 2014-05-21
  Type: Initial release
  
• Version 1.1: 2014-12-10
  Changes: Other
• Version 1.2: 2017-08-23
  Changes: Data collection
• Version 1.3: 2019-12-18
  Changes: Other